
Performance-Engineered for Outboards
- Protects two-stroke outboards at 100:1 mix ratios.
- Prevents plug fouling and ring sticking.
- Improves idling and throttle response.
- Minimizes smoke and emissions.
Product Overview
AMSOIL Synthetic 2-Stroke Outboard Oil is engineered with low-temperature dispersants that reduce varnish and carbon deposits to help eliminate plug fouling and promote rapid throttle response in water-cooled outboard motors. Its environmentally friendly low-smoke, low-odor, low-toxicity properties produce fewer emissions at 100:1 mix ratios than other oils mixed at 50:1.
Smokeless Protection
AMSOIL Synthetic 2-Stroke Outboard Oil delivers superior lubricity and anti-wear protection at 100:1 mix ratios and burns clean to eliminate smoke and reduce emissions. It also inhibits rust and corrosion common to marine applications.
Superior Performance
AMSOIL Synthetic 2-Stroke Outboard Oil improves ignition, idling and throttle response in two-stroke engines by inhibiting deposit formation that causes plug fouling, ring sticking and exhaust port blockage.
- Prevents plug fouling and ring sticking.
- Improves idling and throttle response.
- Minimizes smoke and emissions.
- Maximizes torque and power.
- Protects at lean mix ratios.
- Inhibits rust and corrosion.
APPLICATIONS
Use pre-mixed in two-stroke outboard motors, personal watercraft and jet boats that specify TC-W3. For maximum performance, mix with gasoline at 100:1 regardless of the mix ratio specified for the equipment. Richer mix ratios may be used if desired.
| RATIO | OIL | FUEL |
| 50:1 | 2.6 oz. | 1 U.S. GALLON |
| 80:1 | 8.0 oz. | 5 U.S. GALLONS |
| 100:1 | 8.0 oz. | 6 U.S. GALLONS |
WARRANTY SECURE®
AMSOIL Synthetic 2-Stroke Outboard Oil is Warranty Secure, keeping your factory warranty intact. It is a high-performance replacement for manufacturer-branded oils and backed by the AMSOIL Limited Warranty.
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Product information checked: September 2026. Product formulations, specifications, applications, availability and published claims can change.
For the latest official information, consult the AMSOIL Corproate Website.




